Stefano Crocco authored Sep 10, 2020 and David Faure committed Sep 10, 2020

Despite Qt 5.12 being the minimum required Qt version, the following
functions introduced in Qt 5.14 were used:
- QComboBox::textActivated (in settings/konqhtml/appearance.cpp)
- downloadFileName, downloadDirectory, setDownloadFileName,
  setDownloadDirectory in QWebEngineDownloadItem

Don't use QComboBox::textActivated

Use QWebEngineDownloadItem::path and QWebEngineDownloadItem::setPath with Qt 5.13